<template>
	<view class="normal-login-container">
		<view class="login-form-content">
			<text class="title">账号密码登录</text>
			<view class="input-item flex align-center">
			  <view class="iconfont icon-user icon"></view>
			  <input v-model="loginForm.username" class="input" type="text" placeholder="请输入账号" maxlength="30" />
			</view>
			<view class="input-item flex align-center">
			  <view class="iconfont icon-password icon"></view>
			  <input v-model="loginForm.password" password class="input" placeholder="请输入密码" maxlength="20" />
			</view>
			<view class="input-item flex align-center" style="width: 60%;margin: 0px;" v-if="captchaEnabled">
			  <view class="iconfont icon-code icon"></view>
			  <input v-model="loginForm.code" type="number" class="input" placeholder="请输入验证码" maxlength="4" />
			  <view class="login-code"> 
			    <image :src="codeUrl" @click="getCode" class="login-code-img"></image>
			  </view>
			</view>
			<view class="action-btn">
			  <button @click="handleLogin" class="login-btn cu-btn block bg-blue lg round">登录</button>
			</view>
			<view class="reg text-center" v-if="register">
			  <text class="text-grey1">没有账号？</text>
			  <text @click="handleUserRegister" class="text-blue">立即注册</text>
			</view>
		</view>
	</view>
</template>

<script>
  import { getCodeImg, checkBindWechat, greet, bindWechat } from '@/api/login'

  export default {
    data() {
      return {
        codeUrl: "",
        captchaEnabled: true,
        // 用户注册开关
        register: false,
        globalConfig: getApp().globalData.config,
        loginForm: {
          username: "",
          password: "",
          code: "",
          uuid: ''
        }
      }
    },
    created() {
      this.getCode()
    },
    methods: {
      // 用户注册
      handleUserRegister() {
        this.$tab.redirectTo(`/pages/register`)
      },
      // 获取图形验证码
      getCode() {
        getCodeImg().then(res => {
          this.captchaEnabled = res.captchaEnabled === undefined ? true : res.captchaEnabled
          if (this.captchaEnabled) {
            this.codeUrl = 'data:image/gif;base64,' + res.img
            this.loginForm.uuid = res.uuid
          }
        })
      },
      // 微信登录
      async wechatLogin() {
        uni.login({
          success: async (res) => {
            console.log("微信登录", res);
            if (res.code) {
              let greetRes = await greet(res.code)
              // 获取openid 绑定
              console.log(greetRes);
              let openid = greetRes.data.openid
              checkBindWechat(openid).then(async checkRes => {
                console.log("check:>>", checkRes);
                if (!checkRes.data) {
                  await bindWechat(openid)
                }
              })
            }
          }
        })
      },
      // 登录方法
      async handleLogin() {
        if (this.loginForm.username === "") {
          this.$modal.msgError("请输入您的账号")
        } else if (this.loginForm.password === "") {
          this.$modal.msgError("请输入您的密码")
        } else if (this.loginForm.code === "" && this.captchaEnabled) {
          this.$modal.msgError("请输入验证码")
        } else {
          this.$modal.loading("登录中，请耐心等待...")
          this.pwdLogin()
        }
      },
      // 密码登录
      async pwdLogin() {
        this.$store.dispatch('Login', this.loginForm).then(() => {
          this.$modal.closeLoading()
          this.loginSuccess()
          this.wechatLogin()
        }).catch(() => {
          if (this.captchaEnabled) {
            this.getCode()
          }
        })
      },
      // 登录成功后，处理函数
      loginSuccess(result) {
        // 设置用户信息
        this.$store.dispatch('GetInfo').then(res => {
          // 检查是否有重定向页面
          const redirectPage = this.$store.state.user.redirectPage
          if (redirectPage) {
            this.$tab.reLaunch(redirectPage)
          } else {
            this.$tab.reLaunch('/pages/index')
          }
        })
      }
    }
  }
</script>

<style lang="scss">
  page {
    background-color: #ffffff;
  }

  .normal-login-container {
    width: 100%;

    .logo-content {
      width: 100%;
      font-size: 21px;
      text-align: center;
      padding-top: 15%;

      image {
        border-radius: 4px;
      }

      .title {
        margin-left: 10px;
      }
    }

    .login-form-content {
      text-align: center;
      margin: 20px auto;
      margin-top: 15%;
      width: 80%;

      .input-item {
        margin: 20px auto;
        background-color: #f5f6f7;
        height: 45px;
        border-radius: 20px;

        .icon {
          font-size: 38rpx;
          margin-left: 10px;
          color: #999;
        }

        .input {
          width: 100%;
          font-size: 14px;
          line-height: 20px;
          text-align: left;
          padding-left: 15px;
        }

      }

      .login-btn {
        margin-top: 40px;
        height: 45px;
      }
      
      .reg {
        margin-top: 15px;
      }
      
      .xieyi {
        color: #333;
        margin-top: 20px;
      }
      
      .login-code {
        height: 38px;
        float: right;
      
        .login-code-img {
          height: 38px;
          position: absolute;
          margin-left: 10px;
          width: 200rpx;
        }
      }
    }
  }

</style>
